I need some help. Anyone good with troubleshooting electronic issues with vague descriptions about 90's gaming hardware?
I've replaced the capacitors on my Sega CDX. Everything went relatively well, except for one issue right now. The CD doesn't spin. The CD did spin before I started replacing capacitors, so it's my issue.
I went one by one making sure the solder joints are all good and nothing appears to be causing a short.
The Laser tray moves and the lens moves too. When I turn on the power, the CD hub slightly shakes, so I know it has power. It's just not receiving the data to tell it to spin.
Now there was one issue I ran into when removing an old capacitor. I accidentally removed a pad while pulling it out. But this wasn't a normal solder pad for one leg of the capacitor, it was shared by Pin 1 of a chip. So the positive pole of the capacitor was directly soldered to Pin1 of a chip. I search for any traces leading away from that pad, and I saw nothing. Held it up to the light and could see where all the other pins on the chip go, but did not see anywhere where this should have gone. So my thought was that the only bridge was between the capacitor and Pin 1.
That may be my issue, it may not. I have no idea how to test. I've tried continuity tests, and haven't figured anything out.
So my question is, does anyone know how to track this down, or at least figure out which part of the board handles the spinning action of the CD?
More searching and testing
Saw others having same issue. Comments said to clean the laser lens. I've done that, and still nothing. But they said that if it can't see a disc, it won't spin. I have noticed that my lens doesn't shine a laser. So maybe this issue is with the laser not being able to turn on. The laser did work before, so I know it didn't go bad. It still has to do with something I've done.
I've tested, and all the connections to the ribbon are good for the laser. There are 4 connections to the laser. I tested each one individually. With JUST the ribbon connected, the laser does move up and down. But no red dot is seen. The power cable to move the sled back and forth works. The power cable to spin the CD I assume works, since it shakes a little when powering up. And there's a 3rd power cable that I'm not sure what it does. It goes just underneath the CD spinner hub, but can't tell what it would power up. So no idea if that works.
And looks like I got a bad laser. I ordered a replacement and swapped it out. I figured it would have been good. Put the old one back in, and the disc spins. But doesn't read discs very well. I've tried messing it the POTs and cannot make it perfect. So as of right now, it doesn't seem the capacitors was the issue of the Laser not reading discs, or a slipup of installing new ones.
Contacting ebay seller to see about getting a replacement.